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MULTIDETEK 2 User’s manual 

 

62 

7.5.3 Digital output 

This menu displays all digital output in the MultiDetek2 with their actual value. If the 

square is grey, the state of the output is unknown (probably a communication problem), if 

the square is dark green, the output is OFF, if the square is light green, the output is ON. 

 

You can force any output at OFF or ON. When a state is forced, an “F” is displayed in 

the square. 

 

The progress bar in the corner shows the refreshing rate. 

 

 

Figure 49: Digital output window 

7.5.4 LDepc 

This menu displays the communication status, the actual flow, the actual pressure, the 

flow table and the PID of the LDepc.  

 

 

Figure 50: LDepc diagnostic window 

 

Summary of Contents for MultiDetek2

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Page 3: ...MultiDetek 2 Trace impurities analyzer USER S MANUAL V3 9 Printed in Canada Copyright 2016 ...

Page 4: ...7 6 4 Diaphragm valve and purged heated valve box 27 6 5 Carrier gas electronic pressure regulator LDepc 28 6 6 Ovens and columns 28 6 7 Large 8 4 touch screen LCD LDChroma 29 6 8 Built in sample purging and monitoring system 29 6 9 Bolt on compact purifier 31 6 10 Advanced Quartz Crystal Microbalance sensor 31 7 LDChroma 32 7 1 Configuration 32 7 1 1 Machine 32 7 1 2 Method 33 7 1 3 Factory 33 7 ...

Page 5: ...8 7 4 Calibration Menu 59 7 5 Diagnostics Menu 61 7 5 1 Analog input 61 7 5 2 Analog output 61 7 5 3 Digital output 62 7 5 4 LDepc 62 7 5 5 Modbus Register 63 7 5 6 Modbus Connection 63 7 5 7 Idle Sensor 63 7 6 Regeneration 64 7 7 About menu 65 7 8 Firmware Update 65 8 0 Backpanel terminal identification 66 9 0 Drawings Schematics 68 10 0 Maintenance 71 10 1 Spare part list 71 10 2 Frequently aske...

Page 6: ...ing system 29 Figure 18 Compact LDP 1000 31 Figure 19 Machine Manager 32 Figure 20 Method Manager 33 Figure 21 Network 34 Figure 22 Chromatogram menu 35 Figure 23 Solenoid proportional valve 36 Figure 24 Bottom bar 36 Figure 25 Left bottom bar 37 Figure 26 Middle bottom bar 38 Figure 27 Alerts windows 38 Figure 28 Historic menu 39 Figure 29 Historic list window 40 Figure 30 Peak Results 40 Figure ...

Page 7: ...ation menu 59 Figure 47 Analog input window 61 Figure 48 Analog output window 61 Figure 49 Digital output window 62 Figure 50 LDepc diagnostic window 62 Figure 51 Modbus register window 63 Figure 52 Modbus information window 63 Figure 53 Regeneration window 64 Figure 54 About menu 65 Figure 55 Firmware Update 65 ...

Page 8: ...LDetek makes the assumption that all operators have taken the time to read this information prior to installation operating and troubleshooting this analyzer If any error is suspected by the reader please contact LDetek LDetek reserves the right to make any changes to subsequent editions of this document without prior notice to holders of this edition We want to thank you for choosing LDetek as yo...

Page 9: ... when such goods part s and consumable are capable of being renewed repaired or replaced The Seller shall not be liable to the Buyer or to any other person for the loss or damage directly or indirectly arising from the use of the equipment of goods from breach of any warranty or from any other cause ALL OTHER WARRANTIES EXPRESSED OR IMPLIED ARE HEREBY EXCLUDED IN CONSIDERATION OF THE HEREIN STATED...

Page 10: ...CH SUCCESSOR INTEREST TO THE GOODS PROVIDED HERE UNDER Major force The seller is not liable for failure to perform due to labour strikes or acts beyond the seller s direct control SERVICE POLICY 1 If a product should fail during the warranty period it will be repaired free of charge For out of warranty repairs the customer will be invoiced for repair charges at current standard labour and material...

Page 11: ... cover the transportation fees Other conditions and limitations may apply to international shipments PROPRIETARY RIGHTS Buyer agrees that any LDetek s software firmware and hardware products ordered or included in the goods ordered are proprietary of LDetek No change modification defacement alteration reverse engineering neither software de compilations nor reproduction of such software or hardwar...

Page 12: ...MULTIDETEK 2 User s manual 5 LDetek Inc and shall be used only in connection with LDetek s products No third party could remove or deface any model number or marks 3 Declarations of conformity ...

Page 13: ...MULTIDETEK 2 User s manual 6 ...

Page 14: ...MULTIDETEK 2 User s manual 7 ...

Page 15: ...arm 10 x 4 20 mA isolated output 10 x Range contacts Alarm Historic Digital system status output for remote monitoring dry relay contact Range ID relay 2 alarms contacts 1 High resolution chromatogram output Options Serial port RS 232 422 485 Profibus for monitoring 2 x analog inputs or and 1 digital input 8 contacts for remote streams control 1 extra contact 1 x Auxiliary oven control Net Support...

Page 16: ...de of thin quartz this analyzer vent must be used in ATMOSPHERIC PRESSURE TO AVOID ANY CELL CRACKING Any back pressure to the detector vent connection will cause damage and replacement of the plasma detector module Such PED requires no maintenance FID The principle of the FID is based on ionization of carbons using a flame The flame is maintained using a mixture of hydrogen and air at a specific r...

Page 17: ...cts are properly packed in a cardboard box and all instruments come with an associate document name Operating parameters Refer to the steps below to ensure the proper start up for this unit 1 Unpack the instrument carefully from the box and inspect it to be sure it is in good condition and hasn t been damaged during shipping 2 Find the documents of the instrument USB key fuse kit and power cables ...

Page 18: ...the power source can be connected Please refer to the model number of the instrument that shows the voltage of it 120VAC or 240VAC Further the red indicator on the power inlet module on the back panel must have the same voltage indication than shows in the model number Introducing the wrong power voltage source can severely damage the instrument 8 Turn ON the unit by switching on the back panel sw...

Page 19: ...t will be solved automatically after few minutes It is the time required for the initial start up to heat up the ovens The set points to achieve are written in the datasheet of the instrument You can also confirm the oven set points by going in the menu Settings Oven select the right oven and look at the first value of the time table beside at start If after few minutes the oven temperature deviat...

Page 20: ... Settings Flow select the right flow and look at the first value of the time table beside at start If after few minutes the alert is still active and no flow change occurred then it is suggested to ensure the carrier gas pressure at the carrier inlet of the MultiDetek2 is set at 100PSIG as wrote in the datasheet Make sure nothing add restriction between carrier source and carrier inlet of the anal...

Page 21: ...at the sample inlet of the MultiDetek 2 is set generally between 5PSIG and 30PSIG as wrote in the datasheet Make sure nothing add restriction between sample source and sample inlet of the analyser If after confirming the above you still have an active Low flow on sample alerts are display then it is required to contact LDetek support for further instructions Detector off This type of alert will be...

Page 22: ...urity The balance gas of this cylinder should be the same than carrier gas or the advised balance gas of the method that the analyser is built for For example if the analyzer is configured for measurement of 0 10ppm Ar and 0 50pm N2 in Balance Oxygen Then you can use a certified span gas containing between 7ppm 9ppm Ar and between 35ppm 45ppm N2 in balance Oxygen or in the same gas as the carrier ...

Page 23: ...rier gas was closed prior because any back pressure to the detector vent connection will cause damage and replacement of the plasma detector module Refer to the steps below to ensure the proper shut off of the unit 1 In LDChroma make sure you are in Admin mode If needed refer to section 7 1 5 User and Admin Mode 2 Once in admin mode click on Quit A window will pop up asking you if you want to powe...

Page 24: ... are used as carrier gas for GC Their physical properties make these gases the top choices for using in the gas chromatography The carrier gas must be continuously flowing without interruption at the required flow and pressure rates to be able to keep the GC working properly The carrier gas is used to carry the sample gas to the chromatographic columns and gas detectors Therefore the purity of the...

Page 25: ...most critical point Once the system has switched on the backup bottle it is the responsibility of the user to replace the empty bottle The lifetime of a carrier bottle is application dependent but as an indication a small to mid size GC system requires a 50Liters 9cubic meters bottle once a month ...

Page 26: ...MULTIDETEK 2 User s manual 19 Figure 6 Typical Installation ...

Page 27: ...lector system allowing the different streams to be selected for analysis It is important to use an actuation gas having the same specifications as the carrier gas This is to avoid any phenomenon that could occur by mixing between the actuation and carrier gas resulting in faulty events Figure 7 is the low cost and easiest way to interconnect the actuation gas to the carrier gas source using a tee ...

Page 28: ...MULTIDETEK 2 User s manual 21 Figure 7 Same source actuation ...

Page 29: ...MULTIDETEK 2 User s manual 22 Figure 8 2 sources actuation ...

Page 30: ...etween the sample gas and the doping gas The doping gas must be connected to a certified gas bottle containing a known concentration between 100 1000ppm O2 in a balance gas being the same as the carrier gas The pressure of that said bottle must be set at a value between 10 30psig Depending on the GC application the flow consumption of the doping gas will be as low as 100sccm for a period varying f...

Page 31: ...MULTIDETEK 2 User s manual 24 Figure 9 O2 doping ...

Page 32: ...ated with liquid or high concentration hydrocarbons The PED design is modular and can be easily replaced on site The FID detector is used for measuring hydrocarbons and his design makes it suitable for easy operation The maintenance is easy since it offers an easy access As any FID maintenance consists of cleaning the interior of the detector Its compact design makes possible to install up to 2 FI...

Page 33: ... and sample can easily be replaced on site Such replacement is necessary in case of high contamination of the instrument Also the 4 20mA analog output modules can be replaced on site There is one module for every impurity max 10 The microcontroller is also modular and can be easily changed on site This modular conception of the motherboard has been developed to allow easy maintenance on the instru...

Page 34: ...or more information A split splitless septum injector can also be mounted for syringe injection It can also be heated 6 4 Diaphragm valve and purged heated valve box LDetek has worked in collaboration with its valve suppliers to get the right diaphragm valves to offer extended lifetime and high performances Many methods have been developed and tested to allow high purity measurement without having...

Page 35: ...th an easy access by the front door for changing the columns in it Each oven can fit up to 2 x packed or micro packed or PLOT type columns The columns can be 1 8 OD 1 16 or PLOT type The maximum operating temperature of each oven is 200 Celsius degree A safety temperature cut off switch protection is installed in each oven to avoid overheating of each device A programmable oven version is also ava...

Page 36: ...g on Windows 7 embedded With its clear 8 4 touch screen LCD it allows the operator to easily navigates through the different menus Moreover the system includes an Ethernet port for remote control 6 8 Built in sample purging and monitoring system Figure 17 Built in sample purging and monitoring system Figure 16 8 4 Touch screen LCD ...

Page 37: ...ged with the same gas type that the carrier gas used for the system That environment requires low purge flow rate of about 10 30sccm through a fix orifice depending of the system configuration The box is fully ambient air free and the system is ready to use after a short period of about 20 30 minutes depending of the system configuration This waiting period is only requires for initial start up si...

Page 38: ...rtz Crystal Microbalance sensor The Advanced Quartz Crystal Microbalance sensor from Michell Instruments is now integrated inside the MultiDetek2 GC to provide reliable fast and accurate measurement of trace moisture content in a variety of applications where keeping moisture to a minimum is of critical importance The analyzer provides consistently accurate measurements of trace moisture This cons...

Page 39: ...ect a keyboard The touchscreen must be handled carefully to avoid any problem with the sensitivity The following section shows the different tabs and menus on the interface 7 1 Configuration The configuration tab show different menus describe below 7 1 1 Machine The Machine menu allows you to import or export all the settings of your GC in a machine file md2m The file contains all the settings and...

Page 40: ... you to delete the selected method Copy Allows you to copy the selected method Rename Allows you to rename the selected method Export Allows you to export the selected method into a method file md2c Import Allows you to import a method file md2c 7 1 3 Factory The Factory menu is used to come back to the factory settings 7 1 4 Network The Network menu is used to show the current network settings ...

Page 41: ...r and Admin Mode User Mode While in this mode the user has limited access to settings Admin Mode While in this mode the user has access to all the settings The factory password to access this mode 12345 It can be change in the setting menu see section 6 3 1 8 ...

Page 42: ...s where you run the analysis It is where you can see the chromatogram the current results the alerts the oven temperature the sample flow and the carrier flow Figure 22 Chromatogram menu 1 On the chromatogram the X axis shows the time in second and Y axis shows the voltage in mV 1 2 3 4 5 6 7 8 ...

Page 43: ...end The Auto Restart checkbox is used to restart automatically an analysis or a sequence The arrow beside of Start is used to select different methods or sequences Only one can be selected at a time 7 This field appear if streams are configured By clicking on the arrow you are able to select the stream you want to analyse 8 The button Print is used to print the current cycle data to your printer T...

Page 44: ...ed to the disk yet Beside the icons you have the current sequence and method name If you right click on this part of the bottom bar you will see the menu shown in the following picture Figure 25 Left bottom bar Save Download to Device Save all the settings on the disk and download them to the GC Upload from Device Take all the settings in the GC and upload them WARNING The GC does not contain all ...

Page 45: ... is one or more active alert s The bar can also become yellow In that case it means that there is a warning Otherwise if gray there is no alert and the MultiDetek2 is ready to perform an analysis By double clicking on the bar the following window will appear Figure 27 Alerts windows Active tab It lists all the active alert If the alerts are red they are active if they are blue they are active but ...

Page 46: ...9 7 2 3 Historic This menu is used to consult the previous analysis results Figure 28 Historic menu Export allows you to export the current chart under the Excel format Print The Print button allows you to print the current chart ...

Page 47: ...mport button loads the historic saved on a hard drive The Peak Graph button shows graphically the concentration of all gases for a period of time If you double click on a result a new window will show up with more information such as concentration area retention time height and noise If you double click on a peak you will see the settings used for the peak detection algorithm Figure 31 Peak detect...

Page 48: ...with your system The settings are split into 2 categories The first one is named Method It is where the settings relative to the current method are configured Parameters such as valve timing ovens temperatures and flows setpoint are defined in that section If the system has more than one method it is required to change the method to access the others methods settings The second category is named M...

Page 49: ...s This parameter is used only when running a sequence and if the next analysis in the sequence has a different stream When the value is 0 the stream will never change during this analysis Digit Peak Value The number of digits displayed in the results resolution Max X Axis The maximum value of the X axis Max Y Axis The maximum value of the Y axis LDL Settings To change the way the results are displ...

Page 50: ...ime of the current peak End The stop time of the current peak Gain The gain of the current peak LDL The lowest detectable limit LDL Any result with a concentration lower than this value will be considered as LDL Alert It is where you can define different alert level for each peak Ranges The ranges are used for the 4 20mA scale 0 unit ppb ppm or 4mA Range Value 20mA ...

Page 51: ...Peak In the peak window the algorithm will detect every rise and every drop A rise followed by a drop is considered as a peak In the Multi Peak mode the first rise and the last drop is considered as the peak Bypass detection In this mode we compute the area of everything upward the start and the end of the window FWHM This is a mode currently in development Averaging Instead of computing an area t...

Page 52: ...Carrier The flow control type o Automatic closed loop control o Manual just for reading no output o LDepc extern control Input Output used for the control P Value Proportional gain for the closed loop control I Value Integral gain for the closed loop control D Value Derivate gain for the closed loop control Low Alert Below this value the Low Flow alert will turn ON ...

Page 53: ...ition If we have reading higher than that the system will stop trying to control it Because there is probably something wrong a broken cable for instance Lookup Table This is the table to convert the sensor reading into units Time Table It contains the setpoint for the flow The at start is the setpoint to reach when no analysis is running In other words before an analysis start You can add more se...

Page 54: ...e oven T sensor you want to use for this oven The type of oven o On Off isothermal oven o On Off fan programmed ramping oven o Proportional HCD Input Output needed for the control P Value Proportional gain for the closed loop control I Value Integral gain for the closed loop control D Value Derivate gain for the closed loop control ...

Page 55: ... instance Hi Limit The highest value to be considered as a normal condition If we have reading higher than that the system will stop trying to control it Because there is probably something wrong a broken cable for instance Lookup Table This is the table to convert the sensor reading into units Time Table This table contains the setpoint for the oven The at start is the setpoint to reach when no a...

Page 56: ...hange The name of the detector The type o Plasma o TCD Input Output needed for the control and monitoring Power The value in for the power delivered to the detector Power Relay Selection of a relay to cut power to detector Only used for TCD detector Started Count The number of counts where the detector is considered ON ...

Page 57: ...Base Offset If you enter 0 this parameter has no effect If you put any other value outside a peak window the filtered value of this sensor will be set at this value Filter Level This is a value in second More second you put more effective the filter will be For instance if you put 10 seconds with an Average filter the filtered value will average 10 seconds of raw data Operating Voltage Factory nor...

Page 58: ...e The digital output associated with it Type Configuration of the valve Injection Heartcut Backflush etc Sampling Loop It shows the sampling loop volume if it is a valve that contains sample loop Display Order This determine the order the valve will have in the menu Time Table The table contains the time where the state of the valve change ...

Page 59: ...rmation about the MultiDetek2 Serial port To manage the setting related to the serial communication Custom Field To setup custom field associated with results Default Printer To select a default printer Password To manage password for the admin mode Automatic Analysis printing To activate automatic printing after each analysis Save Windows Position To activate windows position feature ...

Page 60: ...with it Measured 4mA The current measured during the calibration should be put there By double clicking on the field the output will be set to 4mA Measured 20mA The current measured during the calibration should be put there Calibration Test To force the selected 4 20mA output at the desired value Display Order This determine the order this 4 20ma out will have in the menu ...

Page 61: ... menu Setup By double clicking on it you can change The name of the stream The digital output associated with it Use for Calib This is used to determine the stream used for calibration of the analyser Display order This determine the order this stream will have in the menu ...

Page 62: ...ream will be selected Add To add an analysis to the current sequence Modify To modify an analysis in the current sequence Delete To delete an analysis in the current sequence Analysis selection By double clicking modify on one line in analysis area you can change Method selected for this analysis Purge time before to start this analysis Stream selected for this analysis Select between Until analys...

Page 63: ...Additional description on the column Temperature Temperature setpoint of the regeneration Duration Limit Reg Nb Warning Reg Nb Started Regen Completed Reg Total Duration Duration of the regeneration Setting for maximum suggested regeneration process Settings for warning on suggested max regeneration process Indication of how many regeneration processes started Indication of how many regeneration p...

Page 64: ...t is impossible to choose another value than 502 Indirect Data Map Indirect Data Map is an advanced feature to regroup any other register in a single adjacent area Rules Rules are used with the Last Results Registers Last Result Rules In the Modbus mapping there is an area for the 10 last results By default if no rules are used the latest result is in result 0 the oldest is in result 9 So when a n...

Page 65: ...e QMA The selected oven will control the sensor temperature Assign the LDepc that will control the sample flow Assign the LDepc that will control the dry gas flow for QMA calibration Select the analog input used for QMA It as to be created as Single Detector first Choose the number of points that will be used for averaging Chose between the calculation algorithms The Area mode will calculate the a...

Page 66: ...urrent calibration New Area The area of the new calibration New The concentration of the new calibration All Last Value To load the area of the previous cycle under New Area Apply To save all the change that were made Calibration Historic It displays the historic of the previous calibration It is possible to load a previous one if needed by right clicking on a date and selecting Load ...

Page 67: ...ser s manual 60 It is also possible to see the chromatogram with values of a previous calibration by right clicking on a date and selecting Attached analysis A chromatogram will show in a pop up window as shown below ...

Page 68: ... into units The progress bar in the corner shows the refreshing rate Figure 47 Analog input window 7 5 2 Analog output This menu displays all analog output in the MultiDetek2 with their actual value in counts and converted into units You can also force any value for diagnostic purposes The progress bar in the corner shows the refreshing rate Figure 48 Analog output window ...

Page 69: ...quare is dark green the output is OFF if the square is light green the output is ON You can force any output at OFF or ON When a state is forced an F is displayed in the square The progress bar in the corner shows the refreshing rate Figure 49 Digital output window 7 5 4 LDepc This menu displays the communication status the actual flow the actual pressure the flow table and the PID of the LDepc Fi...

Page 70: ...1 Modbus register window 7 5 6 Modbus Connection This menu displays which IP is connected the MD2 and if there is some activity send and receive data Figure 52 Modbus information window 7 5 7 Idle Sensor This menu is used to save all sensors voltages when the system is at factory These voltage becomes the reference voltages ...

Page 71: ...MULTIDETEK 2 User s manual 64 7 6 Regeneration This menu is used to start a regeneration The settings are pre configured in the setting menu Figure 53 Regeneration window ...

Page 72: ... of the LDPEC s and motherboard installed are also displays It is used to evaluate the compatibility of parts and software versions installed in the unit Figure 54 About menu 7 8 Firmware Update This menu is used to update the firmware of the MultiDetek2 A firmware update should not be done without contacting LDetek support Figure 55 Firmware Update ...

Page 73: ...MULTIDETEK 2 User s manual 66 8 0 Backpanel terminal identification ...

Page 74: ...s dry contact is a spare contact Used for options only ALARM1 This dry contact is open when process value is higher than the alarm1 set value ALARM2 This dry contact is open when process value is higher than the alarm2 set value ChromOut High resolution voltage Chromatogram output terminal output voltage is 0 5VDC between ChromOut and ChromOut terminals ChromOut High resolution voltage Chromatogra...

Page 75: ...MULTIDETEK 2 User s manual 68 9 0 Drawings Schematics ...

Page 76: ...MULTIDETEK 2 User s manual 69 Unit dimensions and cut out dimensions ...

Page 77: ...MULTIDETEK 2 User s manual 70 Back Panel Complete assembly Top section is for gas connections Bottom section is removable on track to have an easy access to inside electronic components ...

Page 78: ...MULTIDETEK 2 User s manual 71 Back Panel Bottom section is for electrical connections Bottom section is removable on track to have access to inside components ...

Page 79: ...MULTIDETEK 2 User s manual 72 Back Panel Top section is for gas connections Top section is fix for gas connections ...

Page 80: ...ion Power supplies Motherboard 4 20mA analog output Ethernet and serial ports USB and VGA ports Back panel connectors Power input LDEPC electronic control PCBs LDEPC carrier flow regulators Diaphragm valves Solenoid valves for valve actuation Sample valve ...

Page 81: ...MULTIDETEK 2 User s manual 74 Easy front access door Accessible isothermal ovens 6x TCD detector PED detector Panel PC ...

Page 82: ...MULTIDETEK 2 User s manual 75 MotherBoard PCB ...

Page 83: ...MULTIDETEK 2 User s manual 76 Motherboard PCB electrical connections ...

Page 84: ...document operating parameters 3 Measure the flow with a flow meter connected at the sample vent of the unit 4 Contact LDetek support support ldetek com with the results obtained in the previous steps Low flow on LDepc 1 Check if the carrier pressure match the value in the document operating parameters 2 Increase the carrier pressure by 20 PSIG to see if the carrier flow stabilize on the setpoint 3...

Page 85: ...he raw signals referring to the operating parameter sheet refer to start up procedure section 4 3 2 Contact LDetek support support ldetek com with the results obtained in the previous steps Lost peaks 1 Check if there are flow alarms and resolve them 2 Check if there are oven temperature deviation alarms and resolve them 3 Check if there are detector off alarm and resolve them 4 Check the raw sign...

Page 86: ...e defective output according to the section 6 3 1 9 2 Refer to drawing Motherboard PCB of the drawing section 8 0 to identify the 4 20mA modules and fuses Check if the fuse is not blown Remove the fuse to measure the continuity of it 3 Swap the defective 4 20mA module with a known working module and test it 4 Contact LDetek support support ldetek com with the results obtained in the previous steps...

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